From the systematic literature review (Appendix 2) 10 RCTs were i

From the systematic literature review (Appendix 2) 10 RCTs were identified, investigating the use of either LPV/r or DRV/r in stable, virologically suppressed patients without active hepatitis B coinfection [78-90].

Assessment of virological suppression showed significantly fewer patients on PI monotherapy maintaining virological suppression compared with those continuing on standard combination ART (RR 0.95, 95% CI 0.9, 0.99), although the difference Bioactive Compound Library supplier was small. A similar result has previously been reported in a meta-analysis [91]. VL rebound is usually at low level, and is easily reversed by reintroduction of NRTIs. The long-term consequences of this viral rebound and re-suppression are unknown. There were no differences in the frequency of emergence of viral resistance, or of serious adverse events, although few patients developed drug resistance and thus confidence in the estimate of this effect is low. One potential concern is the development of CNS disease in patients on PI monotherapy [83, 88]; however, we did not identify a difference in this outcome although the quality of the evidence is low. Further data are required. Overall, there is no significant clinical benefit of PI monotherapy compared with standard combination ART, which might offset the disadvantage of a lower rate of viral suppression with PI monotherapy. For this reason PI monotherapy

should not be used in unselected patient populations for maintaining virological suppression where standard ART is an acceptable alternative.

There may be potential benefits of PI monotherapy, MK-2206 purchase in terms of drug resistance, long-term drug toxicity and cost [92] but further data are required. The ongoing ‘Protease Inhibitor monotherapy vs. Ongoing Triple therapy in the long-term management of HIV infection’ (PIVOT) trial has been designed to address these issues [93]. The primary endpoint is drug resistance. We recognize that PI monotherapy may well be an acceptable option in some specific patient populations but there are few data to provide recommendations. Clinicians selleck screening library might consider PI monotherapy in patients who are unable to tolerate NRTIs due to toxicities or as a short-term measure to manage or bridge complex clinical scenarios (e.g. stopping certain NNRTI-containing regimens or managing toxicity overdose or acute illness). Where PI monotherapy is considered, DRV/r (dosed once or twice daily) or LPV/r (dosed twice daily) should be used. ATV/r monotherapy is not recommended as it has been associated with higher rates of virological failure [94, 95]. PI monotherapy is not recommended in patients with active hepatitis B coinfection. We recommend against treatment interruption or intermittent therapy in patients stable on a virally suppressive ART regimen (1A). Proportion of patients with a CD4 cell count <350 cells/μL not on ART.

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